OptiMate Smart Battery Charger - DC to DC - 12V - 2 Amp

Item # MA99JR

(1 Reviews)

Our Price: $109.95

1 used item available at $102.95

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OptiMate DC to DC Smart Battery Charger Review

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Compact smart charger draws power from an existing 12V battery to charge and maintain another 12V battery. Perfect off-grid solution for jump charging a dead battery as low as 2V or resetting the battery management system (BMS) of a lithium battery. 1-800-940-8924 to order OptiMate battery charger part number MA99JR or order online at etrailer.com. Free expert support on all OptiMate products. Great prices and Fastest Shipping for OptiMate Smart Battery Charger - DC to DC - 12V - 2 Amp. Battery Charger reviews from real customers.

OptiMate Battery Charger - MA99JR

Features:

DC-to-DC smart charger quickly charges and maintains a battery
- Perfect off-grid solution for jump charging a dead battery as low as 2V or resetting the battery management system (BMS) of a lithium battery

Multiple battery profiles let you charge a variety of battery types at different voltages
6-Step charging algorithm automatically charges, tests, and maintains without overcharging
- Analyzes battery condition to provide a customized charge
- Will not charge if source battery voltage is lower than 11V
- Safe for vehicle electronics

Battery clamps provide a quick, easy way to connect to your battery
Eyelets let you make a secure connection to your battery terminals
- 15-amp fuse protects electronics from potential short circuits
- Zip tie slits allow easy fastening to vehicle
- SAE connector with weatherproof seal and cap keeps out dirt and water

Simple operation with LED lights that indicate charging status
Durable, weatherproof case includes wall mounts, 6' supply lead, and 6' charge lead with SAE connector

Specs:

Application:
- 12V lead-acid batteries from 6 amp-hours
- 12V lithium batteries from 2 amp-hours

Battery types supported: flooded, AGM, gel, and LiFePO4 (lithium-iron phosphate)
Maximum charging amperage: 2 amps
Cable lengths:
- Battery clamps: 20"
- Eyelets: 20"
- DC power: 6'
- Charging cable: 6'

Low voltage detection rating: 4 volt
Lowest operating temperature: -4 F (-20 C)
3-Year limited warranty

TM500 OptiMate DC to DC 6-Step 12V/12.8V 2A Sealed DC to DC Battery Saving Charger and Maintainer

Replaces OptiMate TM-500v3

Installation Details MA99JR Installation instructions

Customer Satisfaction Score:

96% were satisfied with this product

4% of customers were not satisfied

Product did not meet expectations

4% of customers were not satisfied

Product did not meet expectations

Customer Reviews

OptiMate Smart Battery Charger - DC to DC - 12V - 2 Amp - MA99JR

Average Customer Rating: 5.0 out of 5 stars (1 Customer Reviews)

Order: Compact smart charger draws power from an existing 12V battery to charge and maintain another 12V battery. Perfect off-grid solution for jump charging a dead battery as low as 2V or resetting the battery management system (BMS) of a lithium battery.

by: Carson M11/27/2022

Thanks Michelle V

See what our Experts say about this OptiMate Battery Charger

Do you have a question about this Battery Charger?

Will The OptiMate Smart Battery Charger # MA99JR Maintain an RV Battery For 12 Volt Solar Batteries?
Yes, you can use the OptiMate Smart Battery Charger # MA99JR to maintain the battery on your seldom used RV. It will provide charging from your 12 volt solar batteries as long as the voltage is above 11 volts on the solar batteries.
view full answer...
Will The OptiMate Smart Battery Charger Work W/ A Lithium LifePO4 Battery On A 2019 Harley Tri-Glide
Yes, you can connect your Lithium LifePO4 auxiliary battery on your 2019 Harley Davidson Tri-Glide to the OptiMate Smart Battery Charger # MA99JR. This battery charger has a 6-Step charging algorithm which automatically charges, tests, and maintains without overcharging, multiple battery profiles let you charge a variety of battery types at different voltages, and also supports flooded, AGM, and gel batteries.
view full answer...
Recommended DC-to-DC Battery Charger for a 2017 Jeep Cherokee
Hey J, for your 2017 Jeep Cherokee I recommend checking out the OptiMate Smart Battery Charger # MA99JR. This is a DC-to-DC charger that will work with flooded, AGM, gel, and LiFePO4 (lithium-iron phosphate) batteries, and has an included weatherproof case with an optional wall mount.
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Are DC to DC Chargers Capable Of Being Mounted To Trailer Frame and Exposed To The Elements?
Generally you do not want to leave a DC to DC charger exposed to the elements. While a charger like the OptiMate Smart Battery Charger # MA99JR does have a durable weatherproof case they restrict use to inside only. We do have the Breakaway Style Charger # 20011 which is very small and designed to fit inside the battery box.
view full answer...
Can OptiMate Smart Battery Charger Be Used as Battery Tender
The OptiMate Smart Battery Charger # MA99JR is designed to draw power from an existing 12V battery to charge/maintain another 12V battery. I suppose if you want to keep swapping out 12V batteries to keep one charged you could use it as a battery tender, but that seems to defeat the purpose. Instead, I recommend using the OptiMate 2 Smart Battery Charger # MA22WR. This is AC to DC so it will maintain your battery using a standard wall outlet instead of another battery. This works with...
view full answer...
Slide In Truck Camper Charging Circuit For Coach Battery
For charging and maintaining your battery in your overhead camper you will need to add a charge line circuit. Most slide in campers will tie into the vehicle either through a 4-way or 7-way into the truck bumper. If your camper is connected through a 7-way you will need to find the termination box for the plug. If you find your connection box you can tie into the 12V power wire on 7-way circuit. I recommend using the 12 V DC Battery Charger # MA99JR. You can tie the charger into your...
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Is Input OptiMate Smart Battery Charger # MA99JR AC or DC Power
Hey Ken, yeah that is an error for sure. The OptiMate Smart Battery Charger # MA99JR was designed to have DC power on the input side as well as on the output side.
view full answer...

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Used Picture for OptiMate Smart Battery Charger - DC to DC - 12V - 2 Amp

Condition: Like New

Notes: May have damaged packaging or minor cosmetic blemishes.

Our Price: $102.95

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Info for this part was:

Video by:

Joe V

Video by:

Cooper S

Installed by:

Jeff D

Installed by:

Evangeline M

Expert Research:

Jameson C

Video Edited:

Chris R

Edited by:

Daron K

Written by:

Alex H

Updated by:

Michael B

Updated by:

Carrie F

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